24 PROCEEDINGS OF THE NATIONAL MUSEUM vol. io6 



Head: Frons dull, covered with short black setae; a narrow pruinose 

 strip on each side on orbits. Upper fronto-orbital plates and ocellar 

 triangle shining; upper fronto-orbital plates with two short reclinate 

 setae on each side, the uppermost pair shorter, sometimes very much 

 so; ocellar setae small, divergent, proclinate. Vertical setae long; 

 inner verticals convergent, outer verticals divergent. Face concave 

 from lateral view; with dorsal portion pruinose, ventral portion shming. 

 Antenna with third segment elongated, almost reachhig or surpassing 

 oral margin; arista very short-plumose. Palpi with scattered black 

 setae. Cheek with a strong seta on each side ventral to eye. Post- 

 cranium convex from lateral view, somewhat flattened dorsal to neck; 

 with scattered black setae. 



Thorax: Mesonotum with many black setae; pruinose except for 

 border next to head which is shining; two notopleural, one supra- 

 alar, one postalar, and one intra-alar setae always present on each 

 side. Scutellum pruinose except for shining apex; with a pan- of 

 long black apical setae, a shorter pair of black lateral setae, and a 

 few short, black, submarginal setae. Postscutellum pruinose laterally, 

 shining along the midline. Propleuron with cluster of pale, weak 

 setae on disc, pruinose next to front coxa. Mesopleuron pruinose next 

 to coxa and ventral to anterior spnacle; a long black seta on dorsal 

 posterior corner. Pteropleuron with a narrow pruinose strip on 

 posterior margin. Prosternum lightly pruinose; with weak, pale 

 setae. 



Thoracic appendages: Front legs: Coxa with comblike row of 

 black setae at tip on inside; femur with long setae on outside; tibia 

 with comblike row of setae at tip. Middle legs: Tibia with one long 

 spur at tip. Hind legs: Coxa with two long setae on outside; tibia 

 with comblike row of setae at tip. 



Wing banding may be reduced as in E. brevifasciata, but banding 

 in general is as follows: Fii-st band extends along costal margin 

 from base of wing to just proximad of tip of auxiliary vein, where it 

 turns posteriorly toward and usually into discal cell proximad of 

 anterior crossvein. Second band originates on costal margin just 

 proxunad of tip of first vein and extends posteriorly over anterior 

 crossvein and usually into discal cell. Third band originates on 

 costal margin proximad of tip of second vein and extends over 

 posterior crossvein. Fourth band extends along costal margin 

 from tip of second vein to tip of fourth vein. Discal cell elongate, 

 broadened apically. Anterior crossvein meets the fourth vein distad 

 of center of discal cell. First vein with many short, black setae on its 

 entire length dorsally. Third vein sparsely covered with short, black 

 setae dorsally. Costa covered with short, black setae. 



